16. DIFFERENCES BETWEEN A MAN’S AND A WOMAN’S SKELETON
Size—male skeleton generally larger
Shape of pelvis—male pelvis deep and narrow; female pelvis broad and shallow
Size of pelvic inlet—female pelvic inlet generally wider, normally large enough for baby’s head to pass through it (Figure 6-18)
Pubic angle—angle between pubic bones of female generally wider

18. JOINT (ARTICULATIONS)
Every bone except the hyoid (which anchors the tongue) connects to at least one other bone
Kinds of joints (Figures 6-19 to 6-21)
Synarthroses (no movement)—fibrous connective tissue grows between articulating bones; example: sutures of skull
Amphiarthroses (slight movement)—cartilage connects articulating bones; example: symphysis pubis
Diarthroses (free movement)—most joints belong to this class
Structures of freely movable joints—joint capsule and ligaments hold adjoining bones together but permit movement at joint
Articular cartilage—covers joint ends of bones and absorbs joints
Synovial membrane—lines joint capsule and secretes lubricating fluid
Joint cavity—space between joint ends of bones
Types of freely movable joints—ball-and-socket, hinge, pivot, saddle, gliding, and condyloid